Question

Using Pythagoras' theorem, calculate the length of PR.
Give your answer in centimetres (cm) and give any decimal answers to 1 d.p.
39 cm
?
36 cm

Answer 1

Answer:

Step-by-step explanation:a$a^{2} +b^{2}=c^{2} =39^{2} +x=36^{2}$

1521+x=1296

x=1296-1521

x=-225